8951220 has 54 divisors (see below), whose sum is σ = 27274338. Its totient is φ = 2376288.

The previous prime is 8951213. The next prime is 8951221. The reversal of 8951220 is 221598.

It can be written as a sum of positive squares in only one way, i.e., 7160976 + 1790244 = 2676^2 + 1338^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8951221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40029 + ... + 40251.

Almost surely, 2^8951220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8951220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13637169).

8951220 is an abundant number, since it is smaller than the sum of its proper divisors (18323118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8951220 is a wasteful number, since it uses less digits than its factorization.

8951220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8951220 is about 2991.8589538947. The cubic root of 8951220 is about 207.6318994941.

The spelling of 8951220 in words is "eight million, nine hundred fifty-one thousand, two hundred twenty".